Patent · US Active

Liquid electrophotographic inks

US8980518B2 · kind B2 · utility

1Cited by

2References

16Claims

0Family size

Assignee

HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. · US

Inventors

Stella Stolin Roditi · Rehovot, IL
Haim Cohen · Nes Ziona, IL
Neta Filip-Granit · Afula, IL
Roi Liraz · Nes Ziona, IL
Eyal Bodinger · Nes Ziona, IL
Marc Klein · Hod HaSharon, IL
Nava Klein · Ashkelon, IL
Eyal Bachar · Nes Ziona, IL
Swissa Shay · Rehovot, IL
Albert Teishev · Nesher, IL
Yaron Grinwald · Gdera, IL
Fernanda Orlik · Rehovot, IL
Ilanit Mor · Kiryat Ono, IL

Key dates

Filing date	Jan 31, 2011
Grant date	Mar 17, 2015
Priority date	—
Expiry date	Feb 10, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG03G15/10
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The present disclosure provides for a liquid electrophotographic (LEP) ink comprising a carrier fluid, a pigment, a high melt viscosity ethylene acrylic acid copolymer resin, and a high acid ethylene acrylic acid copolymer resin. The high acid ethylene acrylic acid copolymer resin can have an acid content of at least 15 wt % and a viscosity of at least 8,000 poise. Additionally, the LEP ink can have a total resin acidity of at least 15 wt % and a total resin melt viscosity of at least 20,000 poise.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.